Top-cylinder lubricator



July 2,- 1929.

G. WOFFORD, SR

f TP CYLINDER LUBRICATOR Y Filed Jue 29, `1928 Illlllllllllllllll f m70@Y @5o/rsf' Worf-aaa, se.

` to cylinder. u 20 .Pit mman object of the invent-lon to provide- 'f adev ilmenau July 2,1929.'

UNITED STATES v PATENT oFF'lcE.

.ciones wonnen,v sa., or Los mesma' cALu'onN'u, assmx'on or Two-'minneTo uvam-Gamm, or LosjnNeELEs, cuaresma.

Tor-minima Lumenos.

'Application med June 89, 1928. -Serial No. 289,250.

This invention lrelates to a device for in' jectingmaterials into an airstream or body of fluid substance, and relates partlcularly to aninjector device especially suitablefor adding a 'fluid', 'such as oil,in atomized form,

to' the fuel mixture being drawn into the cylinders of an internalcombustion motor.

The most extensive utility of my invention is' in' combinationwith'internal combustion motors, as above indicated, wherem it isemployed to deliver continuously a predetermined amount of atomizedlubricant into the' air and hydrocarbon mixture constituting the fuelstream of the m0tor,for

the purpose of. lubricating those partsof the motor forming part of, orbeing as sociated with, the upper part of the-engine cylinder, or whatis commonly known as the of the 'character designated, in which a veryellicient and constant delivery of oil v is accomplished, in' which thequan- -tity of oil delivered may be controlled to '25 vsult theconditions required by any gasoline engine, in which all of thelubricant placed in the deviceis used, and in'which simplicitfy. andeconomy of-producti'on of a device this character is accomplished.

'30 Further objects and advantages willi-be made evident throughout thefollowing parts of the specification. Y

vReferring to the drawing which is for illustrative purposes only,A Y Y35 "F'g. 1 is a vertical cross-section throu h a device embody' g thevprinciples and e e- 'f ments of the invention. Fig. '2 is a sectionderived on theplane re resented by the line 2-2 of Fig. 1.". 31's a viewshowingthe bottom of the Ijuncture plate used in this 'preferred -formof the invention at the lower ends of the induction and transfer tubes.,

Fig. 4 is a fragmenta sectional I'View `ing the invention.

In the embodiment of the invention shown i'n Fig.' 1,' I'employ a hollow'receptacle'. 10

seating another form-o deviembodyconsisting ofl-'a`cup-like body' orv'e'sse'el"4 11 e0 and aca'p 1 ortion 12 vsecured to. the utler 'openend o the vessel 11i 'by -some'sui le means such as by 4interengagingthreads' 13,

there'being a dividing late v1'4 situated-'ML- tween the vessel 1 1' anthe cap 112 serving y 515 to divide the 'interior of the into -device isvattached Tis in o 'a primary compartment 15 anda secondary compartment16. `Extending ,de wn from the upper part 17 of the cap 12 is 'an air l'inlet pipe 18 which has communication with the exterior throughsuitable apertures such as the holes 19 which extend laterally vthroughthe wall of a recessed plug. 20 threaded into the upper wall 17 ofthecap 12, this plu 20 bemg removed when it 1s desired to'ii' l the lowerchamber 15 with a liquid. The inlet pipe 18 projects through an opening22 in the dividing Wall 14, and has on its lower end the juncture plateor body 23. v

A member 24, which for the purpose of description shall be termed theelevator or transfer t'ube, extends upwardly 'frein the juncture plate23d in position adjacent and parallel to the'inletpipe 18 and projects'through'the dividing plate 14. The junc-v ture plate 23 is proximate tocontact with lthe bottom' 25 of, the' vessel 11. and has recesses 27formed in the' bottom 'thereof' which are preferably in the form ofgrooves" communicating with the' lower open en'ds of the members 18 vand24 and extendin .to vthe sides 28 ofthe juncture fplate 23.v hereceptacle O is provided with an outlet" 30 situated in the cap 12, thisoutlet being threaded or otherwise suitably equipped for attachment of atube 31 for connecting the combustion'motor. Disposed between the devicewith the suction side of an internal outlet 30 andf the compartment 16vis a wall 33 having anopening 34 which maybe fully or partly closed byaJilow regulating screw;

' preferably inthe orm of a knob.

When the .combustion .motor to which the 35 threadedinto the upper wall17 of thevv is "exerted through the tu '31 on the inte- .v

rior of the compartment 16', creati 'therein' a'condition of partialvacuum which' is in turn transmitted throug'ha nozzle .38

in the Adividing plate'14-to the upper-'portion of theprimary'compartment 15 ix'i'which a oil 'isplaced as indicated at '39.The

' Pressure 'existing' on the 'exterior of 'the receptacle 10 causes'airto owinwardly Ythroughthe inletpipe` 18 as indicatedfbyY 18' flowslaterally under the juncture plate a5 ration, a suction of the elevatorpipe 24 through which it may u passing up through the elevator tube 24into the secondary compartment 16 and part passing up through the bodyof oil, as illustrated by bubbles 44.

That portion'of the air which passes up through the elevator tube 24 isin open contact with the liquid in the lower compartment, owing to the`fact that the intercommunicating channel 27 is open on its lower side.Such condition insults in liquid being lifted or elevated through thetube 24 into., the upper compartment 16, `from which it normally wouldflow back `into the lower compartment 15 through the orifice 38', bygravity. The portion of air which bubbles' up through the liquid body inthe lower compartment, as indicated at 44, picks up fine* particles ofliquid from the liquid body fill-V ing or partly filling the lowerchamber 15. This flow of air in seeking outlet must pass through theorifice 38 which is rovided with upwardly turned enclosing wa 1s wherebyto give a nozzle effect and to produce a decided atomizing effect on theliquid which is see-k ing to flow down through the orifice 38,

fthereby subjecting the air to an additional and principal impregnationby atomized parbe ticles of liquid, which liquid in the presentillustration of the invention may be understood to be lubricating oil.The flow of air, which passes through the elevator tube 2 4 also' causesatomizationof particles of oil which is being elevated, therefore, allof the air lstreamwhich passes out through the outlet 30 of vthefdeviceis'amply impregnated with lubricant suitable for treatment of theenginecylinders and their associated parts. The amount of lubricantdelivered to the engine may be regulatedby manipulation of the member35. Although I have in Figs. 1, 2 and 3, shown the preferred form 'inwhich idesii-e to practice the invention, it is" possible to employ theseveral combinations of elements compnsing'the'inveiitions in otherforms, as will be recog'mz'ed from Fig. 4 in which 50 indicates thelower rtion ofa cup or container which is divided by'horizontal wallmembers into chambers 51, .'52, 53 and, 54. 'I he wall members 55, 5 6and 57 are respectively perforated at 58, 59 and 60, to permit the airinlet pipel-to roject down into the bottom chamber 51. he lower end ofthe member 61 projects through a plate 63 having a flat lower lsurfaceinstead of the grooved lower surface employed in the preerred formlofthe' invention.. The aii'l which flows through the inletpip'e 61 intothe lower chamber is; spread outilaterally by the plate which surroundsthe discharge end of the air inlet member, part of this air flowentering and rising thrqu h a transfer or 4elevator tube 65, through wch the flow of air carries liquid into the second chamber -52. -A partof the air which has'entered through the inlet pipe 61 bubbles upthrough the body of liquid 66 which has been`placed in the chamber 5land passes successively through the orifices 58, 59 and 60 which may ormay not be provided with\ upwardly or downwardly directed enclosinglips, and

,which orifices are shown of annular form owing to thepassagetherethrough of the inlet pipe 61. Each lof the chambers 52, 53and 54 ma be fed with, liquid which is drawn upt rough interconnectingelevator tubes 70, and 71, as shown. In Fig. 4 the progress of the airin upward direction4 is indicated by 'arrowsf72. It will be noted thatin this alternative form of the inventionthe'various principles of theinvention are employed, although the general appearance of the structuremay differ from the preferred form. It is intended that the scope of theinvention shall not be considered -as confined to-this simpledisclosure, but is to be limited only by the claims. Fclaim as myinvention:

`discharging at a point belowthe level' of a liquid placed in saidprimary chamber; walls providing an outlet from vsaid second- 1. In adevice of the character described: a receptacle having its interior'divided into ary chamber; and atransfer tube extending vfrom a pointadjacent to the .discharge end of said inlet member to the interiorofsaid secondary chamber', 4whereby a portion .of

member may pass through saidtransfer tube into said secondary chamber.

.the 'medium entering through said inlet 2. A'device'as defined in claim1, includ-v`v ingan orifice nozzle surrounding said restricted openingbetween said chambers.

3. A device'as defined in claim 1, in'cluding means between the lowerends of said inlet member and said transfer tubefor di wallsforming acontainer for a liquid, andv a secondary chamber above said, liquidco'ntainer separated from said container by a wall, there being anorifice in the wall; an

12ol A inlet member leading into said device and adapted to dischargewithin said container at a -point below theV normal liquid. levelltherein; walls .forming an outlet for said device'l ding from saidsecondary chagrin-Y ber; an means between saidcontainer and saidsecondary chamber adapted to transfer liquid from `said container tosaid secondary chamber, the transferred Vliquid norchamber.

6. -A device as defined in claim 4, in which said meansv adapted totransfer, liquid con-f sists of -a juncture member at the ischaro'e endof said inlet member and a transfer tube extending from said juncturemember to the interior of said secondary chamber.

7 `In a device of the character described: a vessel; a cap secured tothe upper end of said vessel ;4 a dividing wall between said `theentrance of vessel and said cap, said 'dividing wall having an orificeconnecting said vessel and the interior of said cap; an inlet pipeextending i from the upper wall of said cap, through said dividing wall,to a point proximate to the bottom of said vessel, there being anopening in the top of said cap constituting an entrance to said inletpipe; a transfer tube extending from a point adjacent to the lower endof said inlet ipe to the interior of said cap; and walls ormin an outletleading from the upper part o said cap.

8. A device as defined in claim 7, including means atA the Plower end ofsaid inlet pipe forfdirecting a part .of the entering.

mdium to the entrance tosaid transfer tu e.

9. A device as defined in claim 7, including a vjuncture member at thelower ends of said inlet pipe and said transfer tube having a recess inthe bottom wall'thereof for directing'a part-of theentering medium to Asaid transfertube.

y 10. In a device'of the character described:l a receptacle adapted forthe fiow of a gaseous medim therethrou h;a wall 4in said receptacle inthe path o flow of said gaseous medium having anl orifice through whichgaseous medium must pass in .f1ts

progress through said receptacle; and means operative in consequence ofthe flow of gaseous medium for delivering liquid contained in saidreceptacle to said orifice ary' chamber when a through which a stream ofgaseous medium is flowing.

11. In a' device of the 'character described: walls formin a primarychamber and a secondary cham r above1 said primary chamber, there beinga restricted opening between said primary and said secondary chambers;and a transfer tube extending from the lower portion of said primarychamber to the. interior .,of said secondary chamber through whichliquid may pass from said primary chamber to said secondconditionwofvacuum isexerted on said secondary chamber.

12. In a device of the character described: a liquid receptacle havingan opening in its upper portion; a cap s ecuredover said opening, saidcap having an outlet port; a dividing plate betweenl `saidreceptacle andsaid cap said plate having a perforation therein; inlet means leadinginto said receptacle; and a transfer tube extending from saidreceptacle' to said cap for transferring liquid from the interior of'said receptacle to the interior of said cap when a'condition of vacuumis exerted on the interior of said ca A device as whichsaid inlet meansdischarges at a. point below the level *of liquid placed in saidreceptacle. l

14. Ih a walls forming a discharging into the lower, portion thereofandan outlet leading from the upper portion thereof; aperforate dividingplate between said lower and said u per portion, and a 'transfer tubefor trans erring liquid device ,of the characterdescribed:

defined in claim I2, in i receptacle having an inlet from said lowerportion ,of said receptacle to the upper side of said plate when acondition of` vacuum is exerted on thev outlet of said" receptacle.

`15. A device as defined in claim-14 including valve means operative atsaid outlet for controlling the outlet flow therethrough.

Signed at Los Angeles,

Los Angeles and State-ofi California,

11th\day of J une; 1928.

GEORGEIWOFFORD, sn.

in the county of4 j this

